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Jani Nikula authored
Although we don't support or enable CPU PWM with LPT/SPT based systems, it may have been enabled prior to loading the driver. Disable the CPU PWM on LPT/SPT backlight disable to avoid warnings on LCPLL disable. The issue has been present on BDW since BDW enabling, but was recently introduced on HSW with commit 437b15b8 Author: Jani Nikula <jani.nikula@intel.com> Date: Fri Sep 4 16:55:13 2015 +0300 drm/i915: use pch backlight override on hsw too Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reference: http://mid.gmane.org/87y4frhwsn.fsf@yhuang-dev.intel.comReported-by:
kernel test robot <ying.huang@intel.com> Tested-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1446033429-8006-1-git-send-email-jani.nikula@intel.com
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